:root {
  font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  font-weight: 400;

  color-scheme: light dark;
  color: rgba(255, 255, 255, 0.87);
  background-color: #242424;

  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-text-size-adjust: 100%;
}

a {
  font-weight: 500;
  color: #646cff;
  text-decoration: inherit;
}
a:hover {
  color: #535bf2;
}

body {
  margin: 0;
  display: flex;
  place-items: center;
  min-width: 320px;
  min-height: 100vh;
  justify-content: center;
}

h1 {
  font-size: 3.2em;
  line-height: 1.1;
}

button {
  border-radius: 8px;
  border: 1px solid transparent;
  padding: 0.6em 1.2em;
  font-size: 1em;
  font-weight: 500;
  font-family: inherit;
  background-color: #1a1a1a;
  cursor: pointer;
  transition: border-color 0.25s;
}
button:hover {
  border-color: #646cff;
}
button:focus,
button:focus-visible {
  outline: 4px auto -webkit-focus-ring-color;
}


.button {
  padding: 10px 20px;
  font-size: 16px;
  border: none;
  border-radius: 5px;
  background-color: #007BFF;
  color: white;
  cursor: pointer;
}

.button:hover {
  background-color: #0056b3;
}
@media (prefers-color-scheme: light) {
  :root {
    color: #213547;
    background-color: #ffffff;
  }
  a:hover {
    color: #747bff;
  }
  button {
    background-color: #f9f9f9;
  }
}
.grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  grid-gap: 5px;
}
video {
  width: 90%; /* 减少宽度 */
  height: 90%; /* 减少高度 */
  object-fit: cover;
   
}

.host-label {
  position: absolute;
  bottom: 0;
  left: 0;
   font-size: 12px;
  color: white;
}

.button-bar {
  display: flex;
  justify-content: center;
  gap: 15px;
  flex-wrap: wrap;
}

.button-bar > div {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
}